My uncle was for many years the director of public health for a county in Illinois. He ordered condoms by the pallet. When I turned 18, he gave me a gross of boxes each containing a gross of condoms and a card that said "Use these in good health!" He mostly did that to piss off my mother.

My Freshman year of college I had a really easy to remember on-campus phone number, so I let people know I'd deliver six condoms to the surrounding dorms for $20. By the end of the year I still had like 15,000 condoms left that were close to expiring, so we had a giant water balloon fight with them.